Stock for holding the cutters in rotary plajsing-machines



NITED STATES PATENT IIII@ IVERS GIBBS, OF IVORCESTER, MASSACHUSETTS.

STOCK FOR HOLDING THE CUTTERS IN ROTARY PLANING-MACHINES.

Speccaton forming part of Letters Patent No. 20,999, dated July 27, 1858; Reis'sued March 18, 1873, No. 5,329.

To all cti/10m t may concern:

Be it known that I, Ivens Gines, of lorcester, in the county of lVorcester and State of Massachusetts, have invented certain new and useful Improvements in,Arms for Holding Cutters in that Class of lVood-Planers known as the Daniels.Planing-Machine and I do hereby declare the following to be a full, clear, and exact description of the construction and operation of the same, reference being had to the accompanying drawings, making a part of this description, in which- Figure l represents the arm in perspective. Fig. 2 represents a longitudinal vertical section. Fig. 3 represents a section with the top removed. Fig. 4; represents a vertical cross-section.

Similar letters of reference where they occur in the separate figures denote like parts of t-he arm in all of them.

My invention consists in an oval hollow planer arm for wood planers, the peculiarities of which will now be described.

A is an oval bar with a vertical hole or eye E, through its center to receive the spindle or shaft of the planer upon which it is fastened. At each end of this bar there is an opening C, C, in which the knives or cutt-ers are made fast. This bar or arm is hollow, the cavity I-I, running into each of the openings C, C, and also into the eye E as shown in Fig. t, the inside corresponding with the outside, as shown in F ig. 2, which renders it susceptible of being made eX- ceedingly light and strong. The cavity extends entirely around the eye E, forming a sectional ring, as shown in Fig. 3, but on the outside it is complete as seen in Fig. l. This arm is made of what is commonly called malleable iron and is constructed in the ordinary way of making hollow ware of that metal; and one of its important features is that it is annealed both inside and out. Besides the lightness and strength obtained by constructing my planer arm in this manner it also offers but little resistance to the atmosphere when running and can be used with much less motive power than any arm now in use which is owing mostly to its peculiar shape which is such as to cause it to run comparatively still. Its operation consists simply in fastening it to the spindle which is made to turn at any required speed.

Having thus fully described the nature and object of my invention, I would state that I am fully aware that many things have been wrought and cast hollow, for the sake of strength and lightness. This I do not claim but 4 IV hat I do claim as new and desire to secure by Letters Patent is- A planer arm of the external form herein described, and having' both longitudinal and vert-ical openings through it, for the purpose, and in the manner set forth.

IVERS GIBBS. In presence of- 7. W. RICE, THos. L. NELSON.

[FIRST PRINTED 1911.] 

